How ro change module position of floating button

Hi,
I read the issue "Floating button stuck in module position" and I cannot display the button beause it is hiding the top-sroller icon.
When I inserted the following code the Floating button is displayed on the left side. I would like to display it on the right side at the middle of the website. How can I do this?

Best regards,
Klaus

button.jfab_main_btn {
right:auto!important;
left:16px!important;
padding:0!important;}
.jfab_btns_wrapper {
right:auto!important;
left:0!important;
text-align:left!important;}
.jfab_btns_wrapper button {
padding:0!important;}

Hi, it works fine, thank you!

Hello,
In wich file can I custom the code in order to go up the button a few px because it hinders the button "go to top" of my site.Thanks